Villar-López ME, Nieto-Reyes L, Anguiano-Igea S, Otero-Espinar FJ, Blanco-Méndez J. Formulation of triamcinolone acetonide pellets suitable for coating and colon targeting.
Int J Pharm 1999;
179:229-35. [PMID:
10053215 DOI:
10.1016/s0378-5173(98)00369-x]
[Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Spherical pellets containing 5% of triamcinolone acetonide (TA) were formed by extrusion/spheronization following formulation with microcrystalline cellulose (MCC) and/or a hydrophilic excipient (lactose, sodium carboxymethylcellulose or beta-cyclodextrin, beta-CD). Their suitability for coating, with a view to colonic drug delivery, was assessed in terms of their size, sphericity and dissolution test response. Best results were afforded by 5:90:5 MCC-beta-CD-TA pellets obtained by complexation of TA with beta-CD prior to addition of MCC, extrusion and spheronization.
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